Updated docs for email addTo() (#2382)

Author: sreichel

app/code/core/Mage/Core/Model/Email/Info.php

@@ -78,8 +78,8 @@ public function addBcc($email, $name = null)
     /**
      * Add new "To" recipient to current email
      *
-     * @param string $email
-     * @param string|null $name
+     * @param array|string $email
+     * @param array|string|null $name
      * @return $this
      */
     public function addTo($email, $name = null)